Answer:
quantitative
Step-by-step explanation:
Systematic application of the statistical as well as logical techniques to describe the data scope, condense the data representation, modularize the data structure, illustrating through images, graphs and tables, and evaluating the statistical inclinations or probability data, so as to derive a meaningful conclusions, is called as Data Analysis.
Analyzing data can be qualitative in nature or quantitative in nature.
In the context, Ronald working as a researcher in a firm uses the mathematical as well as statistical tools to analyze data as his data are is quantitative in nature.